[Coverity CID :197606]Incorrect expression in /tests/kernel/common/src/irq_offload.c

[aasthagr]

Static code scan issues seen in File: /tests/kernel/common/src/irq_offload.c
Category: Incorrect expression
Function: test_irq_offload
Component: Tests
CID: 197606
Please fix or provide comments to square it off in coverity in the link: https://scan9.coverity.com/reports.htm#v32951/p12996

[aasthagr]

*** CID 197606: Incorrect expression (ASSERT_SIDE_EFFECT)
/tests/kernel/common/src/irq_offload.c: 46 in test_irq_offload()
40 */
41 void test_irq_offload(void)
42 {
43 /*TESTPOINT: Offload to IRQ context/
44 irq_offload(offload_function, (void *)SENTINEL_VALUE);
45

CID 197606:  Incorrect expression  (ASSERT_SIDE_EFFECT)
Argument "sentinel" of z_zassert() has a side effect because the variable is volatile.  The containing function might work differently in a non-debug build.

46 zassert_equal(sentinel, SENTINEL_VALUE,
47 "irq_offload() didn't work properly");